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太阳爆发X8.1级耀斑
Xin Lang Cai Jing· 2026-02-02 12:50
炒股就看金麒麟分析师研报,权威,专业,及时,全面,助您挖掘潜力主题机会! 太空天气预报中心网站说,对相关日冕物质抛射的模拟显示,大部分抛射物质将在2月5日左右从地球的 北侧和东侧掠过。预计未来几天在4366区域还会出现剧烈的太阳活动现象。 太阳耀斑是太阳上最剧烈的活动现象之一。它是太阳大气局部区域突然变亮的活动现象,常伴随有各种 能段电磁辐射和粒子发射的增强。按照能量从小到大,太阳耀斑可以分为A、B、C、M、X五个级别, 每个级别又可分10个等级。太阳耀斑事件如果足够强大,释放的高能粒子到达地球后会产生太阳辐射风 暴,耀斑伴随的日冕物质抛射还可能引发地磁暴,干扰在轨的卫星和空间站以及地面电力和通信系统 等。(完) (来源:新华社) 据该机构介绍,这类级别的太阳耀斑爆发通常呈快速增强并减弱的脉冲式,可持续数分钟或数小时,会 导致地球向阳侧大部分区域的高频通信波段立即出现大范围强烈信号衰减或中断;高频无线电用户在受 影响区域可能面临数分钟至数小时的信号中断或严重干扰。 新华社洛杉矶2月1日电 美国国家海洋和大气管理局太空天气预报中心1日发布消息称,美东时间1日18 时57分(北京时间2日7时57分),太阳活动区4 ...
今年首个X级耀斑爆发 地磁暴对人体健康影响微乎其微
Ke Ji Ri Bao· 2026-01-22 03:04
北京时间1月19日凌晨2时09分左右,太阳活动区爆发X1.9级耀斑,标志着2026年首个X级大耀斑出 现。受日冕物质抛射影响,自1月20日2时起,地球开始发生地磁暴。截至21日17时,已持续出现15小时 特大地磁暴,18小时大地磁暴以及6小时中等地磁暴,目前地磁活动仍在持续。受此次强烈地磁活动影 响,我国多地天空出现了绚丽的极光。 这次地磁暴为何如此强烈?地磁暴能否预报,未来发生频次会增加吗?地磁暴会影响人类生活吗? 1月21日,科技日报记者就此采访了相关专家。 第一问:此次地磁暴为何这么强? 最后是预测地磁暴的强度与持续时间。当日冕物质抛射到达地球附近时,位于日地之间、距离地球 约150万公里(日地L1点)的"哨兵"卫星会对其进行捕捉。这些卫星可以直接测量太阳风的速度、密度 和磁场方向。其中磁场方向的测量尤为关键,如果太阳磁场转为强烈的南向(与地球磁场方向相反), 就会剧烈扰动地球磁场,引发强地磁暴。 "目前来看,与天气预报相比,空间天气预报的误差仍相对较大。"陈安芹说,从日冕物质抛射离开 太阳表面,到被L1点附近的"哨兵"卫星捕获之前,中间缺乏观测数据,导致地磁暴发生时间的预报误差 在±12小时左右。同时 ...
地磁暴对人体健康影响微乎其微
Xin Lang Cai Jing· 2026-01-22 02:45
这次地磁暴为何如此强烈?地磁暴能否预报,未来发生频次会增加吗?地磁暴会影响人类生活吗?1月 21日,科技日报记者就此采访了相关专家。 第一问:此次地磁暴为何这么强? 国家空间天气监测预警中心首席预报员陈安芹介绍,地磁暴是高速太阳风压缩地球磁场,并引发短时剧 烈扰动的现象,如同平静湖面突然泛起的涟漪,并非真正意义上的"爆炸"。 来源:科技日报 ◎本报记者 付丽丽 北京时间1月19日凌晨2时09分左右,太阳活动区爆发X1.9级耀斑,标志着2026年首个X级大耀斑出现。 受日冕物质抛射影响,自1月20日2时起,地球开始发生地磁暴。截至21日17时,已持续出现15小时特大 地磁暴,18小时大地磁暴以及6小时中等地磁暴,目前地磁活动仍在持续。受此次强烈地磁活动影响, 我国多地天空出现了绚丽的极光。 其次,预测"冲击波"何时抵达地球。基于卫星图像,科研人员会估算日冕抛射体的速度、质量和方向, 进而预测其可能影响地球的时间。 最后是预测地磁暴的强度与持续时间。当日冕物质抛射到达地球附近时,位于日地之间、距离地球约 150万公里(日地L1点)的"哨兵"卫星会对其进行捕捉。这些卫星可以直接测量太阳风的速度、密度和 磁场方向。其 ...
地磁暴对人体健康有影响吗?
Huan Qiu Wang Zi Xun· 2026-01-22 01:08
这次地磁暴为何如此强烈?地磁暴能否预报,未来发生频次会增加吗?地磁暴会影响人类生活吗?1月 21日,科技日报记者就此采访了相关专家。 第一问:此次地磁暴为何这么强? 国家空间天气监测预警中心首席预报员陈安芹介绍,地磁暴是高速太阳风压缩地球磁场,并引发短时剧 烈扰动的现象,如同平静湖面突然泛起的涟漪,并非真正意义上的"爆炸"。 来源:科技日报 北京时间1月19日凌晨2时09分左右,太阳活动区爆发X1.9级耀斑,标志着2026年首个X级大耀斑出现。 受日冕物质抛射影响,自1月20日2时起,地球开始发生地磁暴。截至21日17时,已持续出现15小时特大 地磁暴,18小时大地磁暴以及6小时中等地磁暴,目前地磁活动仍在持续。受此次强烈地磁活动影响, 我国多地天空出现了绚丽的极光。 超强地磁暴通常是由日冕物质抛射引起的,作为最典型的太阳爆发活动,一次日冕物质抛射过程能将数 以亿吨计的太阳物质,以每秒数百千米甚至上千千米的速度抛离太阳表面。这些物质不仅携带巨大质量 与速度汇聚成的动能,也蕴藏着强烈的太阳磁场能量。它们一旦命中地球,就会引发地球磁场方向与强 度的显著变化,从而形成地磁暴。 监测显示,此次耀斑爆发伴随全晕日冕物质 ...
南非观测到极强地磁暴
Xin Hua She· 2026-01-20 14:04
Core Viewpoint - A geomagnetic storm triggered by a solar storm reached G5 (extreme) level in South Africa on January 20, 2023, impacting satellite performance and wireless communication [1] Group 1: Solar Activity - A prolonged X1.9 solar flare on January 18 initiated a coronal mass ejection, leading to charged particles reaching Earth and causing a geomagnetic storm [1] - The geomagnetic storm escalated to G4 (severe) level on the evening of January 19 before reaching G5 (extreme) level early on January 20 [1] Group 2: Geomagnetic Storm Metrics - The Kp index, which measures the intensity of geomagnetic storms, peaked at 9 during the G5 storm, indicating a high level of disturbance in Earth's magnetic field [1] - On January 20 at 6:21 AM, the Earth experienced a Kp value of 6, with solar wind speeds reaching 900 kilometers per second, while the geomagnetic storm intensity in Hermanus was recorded at Kp value 7 [1] Group 3: Effects and Observations - Geomagnetic storms can cause significant disturbances in the Earth's magnetosphere, ionosphere, and upper atmosphere, potentially affecting satellite operations and wireless communications [1] - Residents in parts of South Africa's Western Cape shared photos of auroras on social media, which are more vibrant during stronger geomagnetic storms [1]
2025年,十大太空发现 | 红杉爱科学
红杉汇· 2025-12-26 00:06
Group 1 - The article highlights ten significant space discoveries in 2025, including gravitational wave echoes from deep space and extreme high-energy particles traversing the Milky Way [3] - The discoveries address long-standing scientific questions and challenge existing assumptions about the fundamental laws of the universe [3] - Key findings include clues to life's building blocks in asteroid samples, the detection of interstellar comets, and the first observation of coronal mass ejections beyond the Sun [3][5][10] Group 2 - The asteroid Bennu, approximately 525 meters in diameter and 320 million kilometers from Earth, yielded samples containing various salts, ribose, glucose, and organic materials, suggesting that the building blocks of life may originate from space [5] - The comet 3I/ATLAS, entering the solar system at a speed of about 152,000 miles per hour, is the third confirmed interstellar object, with ongoing observations to determine its size and physical properties [7] - The first direct observation of coronal mass ejections from an M dwarf star was achieved, marking a significant milestone in understanding solar phenomena [10] Group 3 - A report identified five known microquasars in the Milky Way as sources of high-energy cosmic rays, confirming the existence of natural "particle engines" [13] - An extreme black hole merger event was reported, creating a new black hole with a mass of approximately 225 solar masses, challenging existing theories about black hole mass ranges [16] - The LIGO observatory captured the clearest gravitational wave signal to date, validating Stephen Hawking's area theorem with a confidence level of 99.999% [19] Group 4 - The KM3NeT detector in the Mediterranean reported the detection of a neutrino with an energy of 220 PeV, setting a new record for neutrino energy [22] - Astronomers measured the distribution of ordinary baryonic matter in the universe, revealing that over three-quarters of it is hidden in diffuse gas between galaxies, addressing the "missing baryon problem" [25] - Recent findings suggest that dark energy, previously thought to be constant, may be weakening, which could necessitate significant revisions to the cosmological standard model [26][27] Group 5 - New-generation telescopes, including the Euclid space telescope and Vera C. Rubin Observatory, have released unprecedented cosmic data, paving the way for a new era of understanding in areas such as asteroid and galaxy evolution, dark matter, and dark energy [30]
为什么北京也能看到极光?专家解答
Huan Qiu Wang Zi Xun· 2025-11-15 10:02
Core Viewpoint - A rare aurora phenomenon has been observed in several northern regions of China, including Beijing and Inner Mongolia, attributed to recent coronal mass ejections causing geomagnetic storms [1] Group 1: Aurora Phenomenon - The aurora has been reported in northern areas such as Heilongjiang, Inner Mongolia, and Xinjiang, with opportunities to witness it continuing until November 15 [1] - Experts explain that the visibility of auroras in Beijing is due to its relatively northern location and lower light pollution [1] Group 2: Solar Activity - The current solar activity cycle is expected to peak in 2024 and 2025, increasing the likelihood of auroras during this period [1] - The geomagnetic storms resulting from coronal mass ejections are the primary cause of the auroras being visible in regions not typically known for such phenomena [1]
中国气象局:太阳活动区14274爆发X4.0级耀斑
Yang Shi Xin Wen· 2025-11-15 03:48
Core Points - The solar activity region 14274 erupted an X4.0 class flare on November 14, marking the fifth X-class flare during its current rotation cycle [1] - The timing of the flare coincided with daytime in most parts of China, potentially affecting shortwave radio communications due to changes in the ionosphere [3] - A coronal mass ejection occurred, but its trajectory is relatively away from Earth, minimizing direct impact [3] Summary by Sections - **Solar Activity**: The X4.0 class flare is significant as it is the fifth occurrence in the current solar rotation cycle [1] - **Impact on Communications**: The flare's occurrence during daytime may lead to disruptions in shortwave radio communications due to ionospheric changes [3] - **Future Predictions**: There is an expectation of minor geomagnetic storms in the coming days, with a low likelihood of M-class or higher flares. The solar activity level is predicted to be low, with geomagnetic activity remaining mostly calm to mildly disturbed [5]
强烈地磁暴来袭,我国北方多地有望邂逅极光
Ke Ji Ri Bao· 2025-11-14 06:35
Core Points - A significant geomagnetic storm began on November 12, 2023, with the real-time geomagnetic activity index reaching a maximum level of 9, indicating intense space weather activity [1] - The storm is attributed to recent strong solar activities, including multiple high-intensity solar flares classified as X1.8 and X1.1 on November 5, followed by M7.4 and M8.6 flares [1] - The geomagnetic storm is expected to allow for aurora observations in northern regions of China, particularly for observers north of the 40-degree latitude line [2] Group 1 - The geomagnetic storm is a result of a large, complex active region on the sun's surface that has produced multiple medium to high-intensity flares and significant coronal mass ejections [1] - High-energy particles from the storm collide with atmospheric molecules, creating auroras, with colors depending on the altitude and type of gas involved [2] - The auroras are considered a "byproduct" of geomagnetic storms, with the potential for observation extending to lower latitudes during periods of intense solar activity [2] Group 2 - While geomagnetic storms may affect shortwave communication and satellite navigation systems, their impact on human health is negligible [3] - The ongoing solar activity suggests that there may be further opportunities for aurora observations in various locations, providing more chances for astronomy enthusiasts [3]
近期可能出现极光,各位极光爱好者,做好准备了吗
Huan Qiu Wang Zi Xun· 2025-11-11 07:16
Group 1 - The recent solar activity, particularly from active region 12474, has resulted in multiple X-class flares, with a notable X1.2 flare occurring on November 10 [1][4] - Following the X-ray flux decrease from this flare, a significant amount of solar magnetic energy is being released through Coronal Mass Ejections (CMEs), which can impact Earth depending on their intensity and relative position [4][6] - The National Space Weather Monitoring and Warning Center has forecasted that multiple CMEs will likely lead to moderate to strong geomagnetic storms on November 11-12, with a possibility of minor storms on November 13 [6]